Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 8. Отображено 8.
25-07-2023 дата публикации

Breeding method of new late-maturing high-yield macrobrachium rosenbergii strain

Номер: CN116473001A
Автор: ZENG LAN, HUANG GUANGHUA, LU XIAOHUA, WANG RUI, YANG HUIZAN, HUANG LIMING, YANG YANHAO, RUAN ZHIDE, HUANG LIBIN, LU TIANHE
Принадлежит:

The invention relates to the technical field of aquaculture, and discloses a breeding method of a new late-maturing high-yield macrobrachium rosenbergii strain, which comprises the following steps: S1, establishment of a basic group and a core group of the late-maturing high-yield macrobrachium rosenbergii strain: carrying out standardized cultivation and marking on macrobrachium rosenbergii; s2, evaluating and screening a late-maturing high-yield specialized strain of macrobrachium rosenbergii: screening by taking the growth speed, the individual uniformity, the survival rate, the first egg carrying day age, the egg carrying rate, the gonad index and the like as selection indexes, and strictly operating and evaluating according to standards; s3, breeding of a macrobrachium rosenbergii late-maturing high-yield specialized strain: hybridizing and matching the macrobrachium rosenbergii high-yield specialized strain and the late-maturing specialized strain, and measuring combining ability ...

Подробнее
Номер записи: 1
12-03-2014 дата публикации

Fish body length lossless measurement water tank

Номер: CN103621454A
Автор: CAI DESUO, ZHANG JINTUAN, YANG HUIZAN, MENG DONGLIN
Принадлежит:

The invention discloses a fish body length lossless measurement water tank. The fish body length lossless measurement water tank comprises a glass water tank body, a directed fish driving device, a colored steel indium ruler, steel indium ruler fixing strips and a video amplification recording device. Compared with the prior art, the fish body length lossless measurement water tank has the advantages that the structure is simple, installation efficiency is high, use is convenient, installation and operation can be carried out conveniently and rapidly, and the working environment of experimenters can be well improved; the purpose of measuring the body length of experimental fishes can be effectively achieved, video data of each fish can be stored for future reference, the experimental fishes are effectively protected in the process of drive, and the fishes can be kept in the healthy body state so that the requirements of experiments can be met.

Подробнее
Номер записи: 2
25-08-2023 дата публикации

Synchronous spawning parent screening equipment for Australian freshwater lobsters and screening method of synchronous spawning parent screening equipment

Номер: CN116636494A
Автор: YANG HUIZAN, DU XUESONG, WEN LUTING, WU XIA, WANG HONG, WANG RUI, JIANG LINYUAN, MIAO ZONGCHANG
Принадлежит:

The invention discloses synchronous spawning parent screening equipment for Australian freshwater lobsters and a screening method of the synchronous spawning parent screening equipment, and relates to the technical field of aquaculture. The device comprises a light machine, a supporting block and a bracket, the light machine is arranged at the top end of the support, the supporting block is rotationally arranged on the support, a cavity is formed in the supporting block, a containing box made of transparent materials is arranged on the supporting block, a storage cavity is formed in the containing box, a groove is formed in the side, close to the support, of the containing box, and a shielding assembly is arranged at the side end of the support. A driving mechanism capable of controlling the supporting block to rotate is arranged in the support, an air inlet is formed in the supporting block, and an air blowing device with a cooling and heating alternating function is arranged at the air ...

Подробнее
Номер записи: 3
08-09-2020 дата публикации

Fluorescent quantitative PCR detection primer group and kit for enterocytozoon hepatopenaei based on TaqMan-MGB probe

Номер: CN0111635953A
Автор: TONG GUIXIANG, WEI XINXIAN, LIN YONG, TAN HONGLIAN, CHEN XIULI, XIONG JIANHUA, HUANG GUANGHUA, YANG HUIZAN, WANG RUI
Принадлежит:

The invention discloses a fluorescent quantitative PCR detection primer group and kit for enterocytozoon hepatopenaei based on a TaqMan-MGB probe, and belongs to the technical field of virus detection. The detection primer group specifically comprises a primer for detecting enterocytozoon hepatopenaei (EHP) and a TaqMan-MGB probe, and the invention also provides the kit and a detection method based on the detection primer and the probe. According to the designed specific primer and TaqMan-MGB probe, a recombinant plasmid standard substance pMD18-T-SSUEHP is prepared, and the TaqMan-MGB probe fluorescent quantitative PCR method for detecting EHP is established. The detection primer group and kit have the advantages of strong specificity, high sensitivity, good repeatability, wide quantitative range, simplicity, rapidness and the like, are suitable for quantitative detection of EHP of shrimp samples, and can provide a new technical means for rapid quantitative detection and real-time monitoring ...

Подробнее
Номер записи: 4
19-03-2014 дата публикации

Fish water tank experiment fish driving device

Номер: CN103636594A
Автор: ZHANG JINTUAN, CAI DESUO, YANG HUIZAN, MENG DONGLIN
Принадлежит:

The invention discloses a fish water tank experiment fish driving device which comprises longitudinal meshes, a horizontal mesh, bottom fixing supports and mesh fixing clamps. The longitudinal meshes are components which are provided with various mesh holes and can be randomly combined, the horizontal mesh is a hard mesh with a 5mm small hole diameter, vertical movement of the horizontal mesh drives experimental fishes to vertically move, left-right and front-back movement of the longitudinal meshes drives the experimental fishes to horizontally move, the meshes can be mutually fixed by the mesh fixing clamps, and the longitudinal meshes move front and back and can be fixed into an experimental water tank by the bottom fixing supports. The fish water tank experiment fish driving device is simple in structure and high in mounting efficiency, directional fish driving can be conveniently performed in an experiment in the water tank, the fish water tank experiment fish driving device can be ...

Подробнее
Номер записи: 5
12-02-2014 дата публикации

Net cage for breeding tilapia

Номер: CN103563804A
Автор: YANG HUIZAN, LIN YONG, ZHANG JINTUAN, ZHANG YONGDE, ZENG LAN, CHEN ZHONG
Принадлежит:

The invention discloses a net cage for breeding tilapia. The net cage comprises a net cage body and a shaping and positioning structure, wherein the net cage body is cuboid and consists of side nets and a bottom net, the long side nets and the bottom net are made of polyethylene net pieces with the fineness smaller than 20-40 meshes, and the short side nets are made of polyethylene net pieces with hole diameters of 1-4cm; and the shaping and positioning structure comprises piles, cross beams, steel wires and sand weights. The net cage has the advantages that the water quality inside the net cage is fresh, tilapia breeding is facilitated, the roe yield is increased, the production controllability is improved, and meanwhile, the cost and the work intensity of production of roes are reduced, so that the good economic benefit can be realized.

Подробнее
Номер записи: 6
07-07-2023 дата публикации

Crop rotation method for crayfish and macrobrachium rosenbergii in rice field

Номер: CN116391656A
Автор: HUANG GUANGHUA, YANG YAN, LU TIANHE, HUANG LIBIN, RUAN ZHIDE, YANG HUIZAN, LU XIAOHUA, WANG RUI, ZENG LAN
Принадлежит:

The invention provides a crop rotation method for crayfish and macrobrachium rosenbergii in a rice field, and relates to the technical field of rice field crop rotation. The crop rotation method comprises the steps of rice field engineering transformation, crayfish seed putting, crayfish feeding management, crayfish catching, macrobrachium rosenbergii seed putting, rice and grass planting, macrobrachium rosenbergii seed stocking, macrobrachium rosenbergii breeding daily management, crayfish disease prevention and control, catching and marketing and the like, and efficient crop rotation of crayfish and macrobrachium rosenbergii is achieved. And the economic benefit of breeding is greatly improved.

Подробнее
Номер записи: 7
19-02-2014 дата публикации

Pseudo-male and full-female nile tilapia fingerling production method

Номер: CN103583427A
Автор: YANG HUIZAN, LIN YONG, ZHANG JINTUAN, ZHANG YONGDE, ZENG LAN, CHEN ZHONG
Принадлежит:

The invention discloses a pseudo-male and full-female nile tilapia fingerling production method. The method includes the following steps that the step 1, fodder including methyltestosterone is fed continuously for 15 days after nile tilapia opens mouth, and phenotype full-male tilapia is obtained and bred to be sexually mature; the step 2, the phenotype full-male tilapia is used as male parents, common female nile tilapia is used as female parents, and compatriot families are established in the ratio of 1:1; the step 3, 100 fries are selected randomly from each family for methyltestosterone treatment, in addition, 100 fries commonly bred are selected randomly as a comparison set, the ratio of female tilapia and male tilapia in the comparison set is counted, medication treatment set male tilapia corresponding to the full-female comparison set is the pseudo-male tilapia with sex chromosome XX, and the pseudo-male tilapia is selected and remains and is bred to be sexually mature; the step ...

Подробнее
Номер записи: 8